Mold for kail welding under traffic



Patented Mar. 8, 1932 i is TATES y CHARLES D. YOUNG, or c nIcAGo, ILLINOIS;

MOLD Fon. :aArLwnLnrNG 4UNDER TRAFFIo Application filed September 5, 1931. Serial No.`561,35'0.

' modified form of mold.v

Referring to the drawings, l'indicates the end of one of the rails to be'welded, and .2 either a projection on the end of the rail ltension l1 below the depression, which head formed by undercutting the other porf tions of the rail oran insert applied between fv tlieends of the rail heads, as is common practice in effecting pressure welds between the rail heads and Vfusion welds between the other parts of the rails. The ends ofthe rails are enclosed in a refractory mold composed of two half mold sections 3 and 4 which extend up to a point approximately in line with the tread .surfaces of the rails, these mold sec-Vv tions, when clamped to the rail ends, defining' a mold cavity. 5 to receive the superheated molten metal which is delivered to the mold through a pouring gate 6 located in one of the mold sections. The other section is provided with a vent or riser 7, which communicates with a lateral overflowchannel 8 formed in the top surface of the mold section and` located slightly below the level of the rail treads, so that any excess of molten metal in the riser 7 will escape by way of thisV channel and will Vnot overflow the tread surface of the railswith the consequentharm thereto.

Formed in the mold section 3 on the tread Y side of the rails is aV depression 10 adapted to clear the wheels of traffic while the mold is in place, and, in order to seal this depression l0 against the entrance of molten metal, the

mold section is provided with a tongue or eX- tonguey is in sealing engagement withthe gauge side of the rail heads. In the event i that the tongue l1 does not make a tight, joint ations. v v

with theheadsof the rails, asuitable luting may be appliedvat this area ofengagement between the tongue and the heads of the rails.

In Fig. 2, the constructionA of the mold secv` tions ,is substantially the same as in the precedingfigure, exceptpthat the pouring gate and the riser areformed as a singleopening (3 throughthe'top of the mold -sectione communicating withV the mold space 5, the overflow channel 8 being formed in the top of the `mold section'A to discharge any surplus metal which might tend to overiiow thel treads of the rails in the same manner as describedrin connection with the mold shown in'Figl. ln this modified for'rnof Fig. 2, the Vother' mold section 3 is provided with ya. vent 15 which is disposed laterally of and ben lowthe depression 10 provided in the top of the section to clear the wheels of tratlc, and,

.as in Fig. 1, communication between said devpression 10 and the mold cavity is prevented Vby, the tongueor extension ll whichengages Y the gauge face of the rail heads.

In thevcase of welding n`rails, the part 2, whether the same be a projection on the face of one rail end or a separateinsert, should 'extend to substantially the full depth ofthe gauge face of theV rail'head, as shown,pin

lorder to assure a sealing contact with the eX- -tension or tongue 1l of the mold which separates the depression 10 from the mold cavity.

From the foregoing description, it will ber apparent that a mold embodying the characteristics y as set forth may be 7 readily clamped in position about the ends of the j rails'to be welded and will not interfere'with the passage of traiiic over the joint during the preparationl for and the actual welding operwhat 1.61am is;

molten metal, coinprisinghalf mold sections adapted to embrace the rail ends, said vsections beingprovided with pouring and venting openings, the section on the gauge side of the rails having adepression to clear the wheel iianges and also a tongue to engage the gauge faces of theirails to separate and seal the mold cavity from said depression.V 1

2. A moldfor welding rails by superheated molten metal, comprising half mold sections embracing the rail ends, one section having a pouring gate and the other section having a vent provided with a lateral overflow channel slightly below the level of the rail tread surface.

3. A mold for welding rails lby super-heated molten metal, comprising half mold sections embracing the rails ends, the section on the gauge side of the rails having a depression to clear the wheel flanges, a tongue at the bottom of said depression to engage the gauge faces of the rails to separate and seal the mold cavity from said depression, and a vent 15 extending laterally of and below said depression, the other section having a combined pouring gate and riser provided with a lateral overflow channel slightly below the level of the rail tread surfaces. 26 In testimony whereof I aiiiX my signature.

`CHARLES D. YOUNG. 

